When solving an equation with two variables, replace the variables with the values given and then solve the now variable-free equation. (Remember order of operations, PEMDAS, Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.)
Solve -2a + 4a = -9a + 2y - 8 for a in terms of y.
| 7y - 6 | |
| \(\frac{1}{3}\)y - \(\frac{1}{3}\) | |
| -\(\frac{2}{7}\)y - 1\(\frac{1}{7}\) | |
| -7y - 3\(\frac{1}{2}\) |